Armstrong Brian
Chairman and CEO
In the last 12 months, Armstrong Brian filed 91 SEC Form 4 transactions across 1 issuer — $0 in open-market purchases and $118.2M in open-market sales. 0% of these transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.
- $0Open-market buys (1y)
- $118.2MOpen-market sells (1y)
- 91Transactions filed
- 1Distinct issuers
- 0%Under Rule 10b5-1
- 2026-01-05Latest filing
Issuers Filed For By open-market buy volume
Recent Form 4 Filings Most recent 75 of 91 (1-year window)
| Date | Ticker | Company | Type | SEC Code | Value | Shares | Price |
|---|---|---|---|---|---|---|---|
| 2026-01-05 | COIN | Coinbase Global, Inc. | Grant | — | $748.4K | 40,000 | $18.7 |
| 2026-01-05 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 40,000 | $0.0 |
| 2026-01-05 | COIN | Coinbase Global, Inc. | Sell | — | $5.2M | 20,790 | $248.5 |
| 2026-01-05 | COIN | Coinbase Global, Inc. | Sell | — | $4.7M | 18,923 | $249.4 |
| 2026-01-05 | COIN | Coinbase Global, Inc. | Sell | — | $71.8K | 287 | $250.0 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Grant | — | $748.4K | 40,000 | $18.7 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 40,000 | $0.0 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Sell | — | $2.3M | 9,138 | $248.6 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Sell | — | $2.2M | 8,937 | $249.5 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Sell | — | $2.9M | 11,707 | $250.5 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Sell | — | $2.2M | 8,635 | $251.5 |
| 2025-12-22 | COIN | Coinbase Global, Inc. | Sell | — | $399.4K | 1,583 | $252.3 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Grant | — | $748.4K | 40,000 | $18.7 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 40,000 | $0.0 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Sell | — | $1.3M | 4,660 | $271.6 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Sell | — | $2.7M | 9,978 | $272.4 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Sell | — | $1.4M | 5,213 | $273.5 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Sell | — | $1.6M | 5,902 | $274.5 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Sell | — | $3.4M | 12,474 | $275.4 |
| 2025-12-08 | COIN | Coinbase Global, Inc. | Sell | — | $489.5K | 1,773 | $276.1 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Grant | — | $748.4K | 40,000 | $18.7 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 40,000 | $0.0 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Sell | — | $2.1M | 8,049 | $255.5 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Sell | — | $1.4M | 5,575 | $256.4 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Sell | — | $2.8M | 11,047 | $257.4 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Sell | — | $2.6M | 10,235 | $258.3 |
| 2025-11-26 | COIN | Coinbase Global, Inc. | Sell | — | $1.3M | 5,094 | $259.1 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Grant | — | $748.4K | 40,000 | $18.7 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 40,000 | $0.0 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Sell | — | $4.3M | 15,711 | $271.1 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Sell | — | $4.9M | 17,957 | $271.8 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Sell | — | $504.3K | 1,848 | $272.9 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Sell | — | $1.1M | 3,845 | $274.1 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Sell | — | $165.7K | 603 | $274.7 |
| 2025-11-17 | COIN | Coinbase Global, Inc. | Sell | — | $9.9K | 36 | $275.9 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Sell | — | $3.6M | 11,264 | $319.8 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Sell | — | $2.9M | 9,196 | $320.6 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Sell | — | $591.6K | 1,839 | $321.7 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Sell | — | $178.6K | 553 | $322.9 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Sell | — | $496.1K | 1,532 | $323.8 |
| 2025-11-10 | COIN | Coinbase Global, Inc. | Sell | — | $199.8K | 616 | $324.4 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Sell | — | $1.5M | 4,524 | $335.1 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Sell | — | $1.4M | 4,301 | $336.2 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Sell | — | $1.8M | 5,424 | $337.4 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Sell | — | $1.7M | 5,080 | $338.2 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Sell | — | $882.1K | 2,600 | $339.3 |
| 2025-11-03 | COIN | Coinbase Global, Inc. | Sell | — | $1.0M | 3,071 | $340.2 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Sell | — | $990.4K | 2,755 | $359.5 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Sell | — | $2.3M | 6,433 | $360.5 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Sell | — | $3.2M | 8,724 | $361.4 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Sell | — | $2.1M | 5,754 | $362.3 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Sell | — | $426.9K | 1,173 | $363.9 |
| 2025-10-13 | COIN | Coinbase Global, Inc. | Sell | — | $58.6K | 161 | $364.2 |
| 2025-10-05 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 0 | $0.0 |
| 2025-10-02 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-10-02 | COIN | Coinbase Global, Inc. | Sell | — | $1.4M | 3,849 | $353.9 |
| 2025-10-02 | COIN | Coinbase Global, Inc. | Sell | — | $1.9M | 5,274 | $355.0 |
| 2025-10-02 | COIN | Coinbase Global, Inc. | Sell | — | $4.9M | 13,729 | $355.9 |
| 2025-10-02 | COIN | Coinbase Global, Inc. | Sell | — | $765.8K | 2,148 | $356.5 |
| 2025-09-15 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-09-15 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-09-15 | COIN | Coinbase Global, Inc. | Sell | — | $2.1M | 6,523 | $321.2 |
| 2025-09-15 | COIN | Coinbase Global, Inc. | Sell | — | $3.6M | 11,022 | $322.3 |
| 2025-09-15 | COIN | Coinbase Global, Inc. | Sell | — | $2.4M | 7,455 | $323.2 |
| 2025-09-04 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-09-04 | COIN | Coinbase Global, Inc. | Grant | — | $0 | 25,000 | $0.0 |
| 2025-09-04 | COIN | Coinbase Global, Inc. | Sell | — | $3.8M | 12,643 | $301.4 |
| 2025-09-04 | COIN | Coinbase Global, Inc. | Sell | — | $2.0M | 6,474 | $302.6 |
| 2025-09-04 | COIN | Coinbase Global, Inc. | Sell | — | $1.8M | 5,883 | $303.4 |
Showing the most recent 75 of 91 transactions.
Methodology & FAQ
How These Filings Are Sourced
All transactions on this page are sourced directly from SEC EDGAR. A complete description of the open-market vs grant distinction, the Rule 10b5-1 plan-reference heuristic, and the per-insider name matching is documented in the Methodology.
What companies does Armstrong Brian file Form 4 disclosures for?
Armstrong Brian has filed SEC Form 4 transactions for 1 issuer in the last 12 months: Coinbase Global, Inc. (COIN).
What does the 10b5-1 badge mean on these transactions?
Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Of Armstrong Brian's 91 reported transactions in the last 12 months, 0 (0%) reference a 10b5-1 trading plan in the Form 4 footnotes.
Are these all the transactions Armstrong Brian has executed?
This page shows SEC Form 4 transactions on record in Pactolio's tracked universe for the last 12 months. Form 4 only covers transactions in registered classes of equity at issuers where the person qualifies as an insider (officer, director, or 10% beneficial owner). Trades in funds, foreign issuers, or non-insider positions are not disclosed under Form 4 and are not included here.